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Igor O. Kozlov, Evgeny A. Zherebtsov, Mikhail A. Mezentsev, Valery V. Shupletsov, Elena V. Potapova, Angelina I. Zherebtsova, Viktor V. Dremin, Andrey V. Dunaev, and Igor V. Meglinski "Analysis of changes in blood flow oscillations under different probe pressure using laser Doppler spectrum decomposition", Proc. SPIE 11079, Medical Laser Applications and Laser-Tissue Interactions IX, 110791Q (22 July 2019); https://doi.org/10.1117/12.2527040

Analysis of changes in blood flow oscillations under different probe pressure using laser Doppler spectrum decomposition

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Author: Kozlov, Igor O.1; Zherebtsov, Evgeny A.1,2; Mezentsev, Mikhail A.1;
Organizations: 1Orel State University named after I.S. Turgenev, Komsomolskaya St. 95, Orel, Russia
2Optoelectronics and Measurement Techniques, University of Oulu, Oulu, FI-90014, Finland
Format: abstract
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.4 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2019082725788
Language: English
Published: SPIE, 2019
Publish Date: 2019-08-27
Description:

Abstract

Presently, in the modern laser Doppler flowmetry (LDF) the distribution of blood perfusion and its changes along the Doppler shift frequencies are simply ignored and/or not properly addressed. Utilizing the registered power spectrum of photocurrent, we introduce an LDF signal processing approach suitable for expanding of diagnostic capabilities of the technique. In particular, we demonstrate that it is possible to determine how the oscillations of blood ow (cardiac, breathe, myogenic, etc.) are distributed along the Doppler shift frequency. Wavelet analysis is utilized to extract the oscillations corresponded to the particular frequency sub-bands of blood perfusion. The main purpose of this study is to identify influence of local pressure by fiber optic probe on cardiac oscillations and their distribution along frequency of Doppler shift.

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Series: Proceedings of SPIE
ISSN: 0277-786X
ISSN-E: 1996-756X
ISSN-L: 0277-786X
Volume: 11079
Article number: 110791Q
DOI: 10.1117/12.2527040
OADOI: https://oadoi.org/10.1117/12.2527040
Host publication: Proceedings, Medical Laser Applications and Laser-Tissue Interactions IX. European Conferences on Biomedical Optics. 23-27 June 2019, Munich, Germany
Conference: European Conferences on Biomedical Optics
Field of Science: 213 Electronic, automation and communications engineering, electronics
217 Medical engineering
3111 Biomedicine
3141 Health care science
Subjects:
Abstract
Funding: The work has been funded by the grant of the Russian Science foundation research project 18-79-00237. Evgeny Zherebtsov kindly acknowledges for personal support from grant of Academy of Finland No.318281.
Academy of Finland Grant Number: 318281
Detailed Information: 318281 (Academy of Finland Funding decision)
Copyright information: © 2019 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.